Time indicator



Apr. 214, 1923'.

A. VARAUD TIME INDICATOR Original Filed Aug. 11, 1920 4 Sheets-Sheet 1 MM, UM

' Apr. 24, 1923. 1,453,086

A-. VARAUD TIME INDICATOR Original Filed Aug. 11, 1920 4 Sheets-Sheet 2 Apr. '24, 1923. 1,453,0

A. VARAUD TIME INDICATOR Original Filed Aug. 11, 1920 4 Sheets-Sheet s 'IIII .!IIIIIIIII4 1111111114 'IIIlIIln' Apr. 24, 1923;

A. VARAUD TIME INDICATOR Original Filed Ah 11, 1920 4 Sheets-Sheet 4 r IIIIIIIIIIII'IIII IIILIIIIII/IlI/III Patented Apr. 24, 1923.

UNITED ANDRE VARAUD, or vnsnn :un

ANONYME nnontoenn nr LAND, A COMPANY C' I' S .TZEBLAND.

1315CUTEa OFFICE.

a, swrrsnenenn, essrenore T0 soorn'rn IE on or GENEVA, swrrznn- INDIGAIOR.

ber 5, 1921.

To all whom it may] 0072067724 Be it known that I. Aimmi Vanauo, watchmaker, a citizen of France, residing at Vesenaz, near Geneva, Canton of Gene a, in the Confederation of Switzerland, have invented certain new and useful Improvements in Time Indicators (for which I have filed applications in Switzerland March 29. Apr. 29, 1919, and Get. 29. 1.919), of which the following is a specification.

This invention has for its object time indicator or the type in which a lllfll'tlQlQ dial hearing chronometric indications arranged circularly moves always in the same direction under a fixed dial having at least one opening in it, and this application is a division of my copending application, Serial. No. 402,920, filed August 11 1920, vtor Le;- ters Patent for an improvement in time indicators.

This invention is represented. in the accompanying drawings which show as examples thereof, several constructional forms. all adapted to already known sizes of watches. clocks or alarms.

Figure 1 is an elevation natural size, of a first working form.

Figure 2 is an elevation thereof on a larger scale the case and the tired dial being removed.

Figures 3 and 4 are detail v'ews thereof showing'detached. in elevation and aerial section the escapement member of the movable dial.

Figures 5 and 6 are likewise detail views showing detached in elevation and axial section the operating member of the movable dial.

Figure 7 is a last detail view thereot showing detached the movable dial in transverse section. v

Figures 8 to 10 relate t the second one structiona] form.

Figure 8 being an elevation natural size.

Figure 9 an elevation on a larg r scale. the case and the fixed dial being removed. and

Figure 10 transverse section on a larger scale on the line 1(l10 of Figure 9 on the front face of the plate.

. Figures 11 to 1?; relate to the third term.

Divided and. this application filed Novem- Figure 11 being an elevation with part of the case and of the fixed dial broken away.

Figure a transverse section on the illO -lQll line l2- of Figure 11, and

gure 13 is a detail view showing from underneath the central escape wheel.

Figures M- to 16 are similar respectively to Figures 1 13 and relate to the fourth form:

Figure 1'? is a detail view showing deed a modification of the spring which ates the escape wheel. i igures 1 to 1'? show four constructional forms oi the subject matter of the invention applied to the ordinary sized watch or 2: arm already known utilizing. a cylinder esc.=pe1nent. first form (see 1 to the mo e dial is constituted by a thin b ca ing circularly 24 indications t hours nuin J61G(l from 2% to 1. This ring lides externally in a circular slide constiu 1 small Checks 0 carried by the dust rap ring 3 hired to the plate 1. Inside this rin' carries 24 teeth arranged alternately at dinercnt levels so as to constitute a series 01: teeth 7 of 12 teeth in the plane of the ring and hy bending back another series of to :th .2 0t 152 teeth above this level. These t me series of teeth are in constant engagement with disc (Z which is mounted treely on carrier screw r1. screwed into the plate 1 and which carries four pins (Z arranged perpcndicularly to the surface of the disc d. (in the collar (Z of the carrier screw 03 oscillates treel below the disc (Z a wheel 0 which with the cannon pinion 5 of the movement ot the watch. The ratio 0"? this gear is so chosen that the cannon pinion which makes one complete revolution o itsel in one hou causes this wheel to ustre 1 th ot a revolution on itself uring the fill t apse ot' time. This wheel. 6 car ries a smal pin to which is fixed the out-er end of aspiral spring F, the other end o-t wh ch is fixed under the disc m to a sleeve c integral with this disc.

The ring 5 is still in engagement c mstantly with cylinder escapement device 9 which is mminted 'treely with a wheel with which it is integral. on a carrier screw 9 likewise screwed into the plate 1. This wheel fig-ears with an intermediate wheel 11. mounted freely on a carrier screw which gears with the cannon pinion 5 mountet trictionally on the shaft of the main pinion.

The ratios of gearing are so arranged that the cannon pinion 5 which makes one complete revolution per hour; may cause the cylinder esc: pement g to make during the same time halt a revolution on itself and alwavs in the same direction. This escapement device 9 has two notches g and g arranged diametrically at difi'erent levels 0pposite ti 1. teeth ;7 and z of the ring I).

9 denotes the seconds hand which may be re nod ii llmul intericrinc with the rotation of the ring 6.

The working of this constructional form is as follows:

As long as the ring I) is locked l' y the escapement device g, the solid part of the cylinder being between two consecutive teeth of the ring; that is to say, during 59 minutes 5 seconds, the spring compressed. by the wheel (2 driven by the cannon pinion 5.

As soon however as one of the notches g comes opposite the corresponding teeth 1/ or or the ring, this latter being subjected to the motive force stored up by the spring 7' by the medium of the pin disc (Z, the escape of a single tooth y or .2 is produced, which allows ol? the rotation on itself of the ring by th of a revolution.

Tn the second constructional term (shown in Figs. 8 to 10) the ring b carrying two series of teeth 11 and at two dilferent levels, rolls, by means of six rollers c which it carries on its rear face in a groove of circular shape made in the plate 1 of the watch.

The wheel 9" integral with the escapement device g gears in this form with the minute wheel 6, and the cylinder 9 rotates on the one hand in a hollow in the plate 1 ol the watch and on the other hand in a bridge ll which covers the minute wheelwork.

The wheel (1 wh ch drives the ring: carrics six pins instead of tour and is actuated by a wheel '27 mounted freely on the cannon pinion. The spring f is fixed at one of its ends to this wheel 1 and at the other end to the cannon wheel 8. The worlq ngr is the same in the pr ceding form.

Tl rough the opening; o appear from noon to m dnight the c'n'respondin n indications cit the old notation. ot the hours from l to 12.

Tn the thir term represented in Figs. '11 to 1-3 the rin 11 carries internally a series of teeth 2 ct ogiral shape which is constantly en nt ith h pinion. ft. in the: front face of this plate l is mounted itreely on -the cannon pinion 5 above the cannon wheel 8 a wheel 2' provided With two stag;

n on F gored sets of teeth 11" and i with six teeth in each. set. All the teeth in both of these acts gear with the pinion (Z. The wheel vi is hollow internally so as to form a seating for a circular spring f. one of the bent ends of which is connected to the wheel a" and the other bent end f to the cannon wheel 8. The teeth and -11 are in engagement with a cylinder escapement g which oscillates beecu the plate 5 and a bridge In the fourth constructional torm represented in Figs. 1-1- to 16, the hour hand is retained. The movable dial 7) has only the ing 7)" the indications ot which for the hours are numbered 0 to 23. The diameter of the cscapement wheel 1' is smaller so as not to interfere with the seconds hand 9. The spring f" which actuates this escapeznent wheel 2" is in the form of a spiral which terminates at its two ends and f in two icons in which engage two pins carried relee cannon wheel 8.

17 shows a modification of the form oi this spring f, in which the loop is repiaced by a curved portion and in which the i'orm ol the spring is cylindrical.

lnstead of having teeth the ring if might he provided with 24 pins arranged vertically towards the surface of the plate 1. which would enter into engagement like the teeth either with the pinion (Z or with the notched cylinder 9.

.llaving now particularly described and ascertained the nature of my said invention and in what manner the same may be performed. l declare that what I claim is:

l. In a time indicator and in combination with a casing and a motor mechanism, a l havil ".1 opening' tlicreim a rcvcliroiionietric indications fixed dial, a cylinder escapement for controlling the movement of the revoluble dial a cannon pinion. and means operated by the cannon pinion "tor turning the rcvoluhle dial a predetermined portion of a revolution when released by the said cscapement.

In a time indicator and in combination with a casing and a motor incchanisn'i. a ii zc l dial liai'iitil' an opening {herim a rl-volulilc di:t liz ring liron unct ic lll'l 'tli l I\-. thereon v sib e through the opening in the i veiil dial. a cannon pinion. a cylinder esrapc ncul lornot'r lly l 'iziinininiim lhc rcv idnlde -'ll;ll in a iifi llllili dri by the cannon pinion lor actuating: the cylinder cscapcmcnt and devices also operated ln he cannon pinion for turni' pthe rev nlulle dial a predetermined portion of a revolution when released by the said cylinder escapement.

In a time indicator and in combination .vith a casing and a motor mechanism, a

Ill)

fixed dial having an opening therein, a revoluble dial having chronometric indications thereon visible through the opening in the fixed dial, a cannon pinion, a cylinder escapement for the revoluble dial, a gear driven by the cannon pinion, and means actuated by the said gear for engaging and periodically moving the revoluble dial a predetermined portion of a revolution when the revoluble dial is released by the said cylinder escapement.

4. In a time indicator and in combination with a casing and a motor mechanism, a fixed dial having an opening therein, a revoluble dial having chronometric indications thereon visible through the opening in the fixed dial, a cannon pinion, a cylinder escapelnent for the revoluble dial, a gear driven by the cannon pinion, a disk, means for yieldingly connecting the said disk to the said gear, and devices causing the said disk to cooperate with the said revoluble dial to move the same a predetermined portion of a revolution When the revoluble dial is released by the said cylinder escapement.

5. In a time indicator and in combination With a casing and a motor mechanism, a fixed dial having an opening therein. a revoluble dial having chronometric indications thereon visible through the opening in the fixed dial, a cannon pinion, a cylinder escapement for the revoluble dial, a gear driven by the cannon pinion, a disk, a spring connecting the said gear and disk, and a plurality of pins extending from the said disk and adapted to engage with a series of internal teeth on the said revoluble dial to turn the same a predetermined portion of a revolution When the revoluble dial is released by the cylinder escapement.

6. In a time indicator and in combination with a casing and a motor mechanism, a fixed dial having an opening therein, a revoluble dial having chronometric indications thereon visible through the opening in the fixed dial, a cannon pinion, a cylinder escapement including a barrel having oppositely disposed recesses therein for the passage of staggered teeth on the revoluble dial whereby the revoluble dial is fixed except when the barrel is in position to permit the said teeth to pass through the said recesses, means tor operating the said cylinder escapen'ient from the cannon pinion, and de vices also operated from the cannon pinion for turning the said revoluble dial a pre determined portion of a revolution when the same is released by the said cylinder escapement.

7. In a time indicator and in combination with a casing and a motor mechanism, a fixed dial having an opening therein. a revoluble dialhaving chronometric indications thereon visible through the opening in the fixed dial, a cannon pinion, an arbor, a gear mounted on the arbor, an intermediate gear meshing with the aforesaid gear and the cannon pinion, a barrel also mounted on the said arborand having oppositely disposed recesses therein for the passage of sets of staggered teeth on the said revoluble dial, and devices also operated by the cannon pinion "tor turning the movable dial a predetermined portion of a revolution when the said barrel is in position to permit the teeth to pass through the said recesses therein.

8. in a time ins'licator and in combination with a casing and a motor mechanism, a fixed dial having an o-penin therein, a revoluble dial having chronometric indications thereon visible through the o ening in the fixed dial, a cannon pinion. an arbor, a gear mounted on the arbon an intermediate gear meshing with the atore aid gear and the cannon pinion, a barrel also mounted on the said arbor d having oppositely disposed recesses ther in for the passage of sets of staggered teeth on the said revoluble dial, another gear wheel also meshing with the said cannon pinion, a disk, a spring for yieldingly connecting the said disk and the last atoresaid gear wheel, and a plurality of pins carried by the said disk and adapted to engage the said teeth on the revoluble dial to move the same a predetermined portion of a revolution when the movement of the revoluble dial is made possible by the passage of the teeth through the said recesses in the said barrel.

9. In a time indicator and in combination with casing and a motor mechanism, a fixed dial having openings therein, a revoluble dial having chronometric indications thereon visible through one of the openings in the fixed dial, a revoluble ring also having chronometric indications thereon visible through another opening in the fixed dial, a cannon pinion, a cylinder escapement for simultaneously permitting the movement of the revoluble dial and the revoluble ring, and means also operated by the cannon pinion for simultaneously turning the revoluble dial and revoluble ring a predetermined. portion. of a revolution when released by the said escnpemeut.

10. In a time indicator and in coinbiua lion with a casing and a motor mechanism, a fixed dial having openings therein, a revoluble dial having chrouometric indications thereon visible through one of the openings in the fixed dial, a revoluble ring also hav ii j rhrononietric indications thereon visible through another opening in the fixed. dial. a cannon pinion, a gear associated with the revoluble ring, a pinion meshing with the said gear and also with teeth on the revoluble dial, a cylinder escapement including a barrel having oppositely disposed recesses therein to permit the passage of the teeth on the gear associated with the revoluble ring,

released by the said cylinder means for driving said cylinder eseapeinent from tlie'cannon pinion. and means for sinniltaneously actuating the revoluhlc dial and reveluhle ring when the said gear is esc-apeinent. 11. In a time indi::ator an v in coinhination with a e no and a motor m \'?"ianis:n, a zixed dial having openings thereni, a revoli'hle dial l aving ehronon'ietric indications thereon visible through one oi the openings in the fixed dia-h a revoluble ring also having chronometric in r tications thereon visihle through another opening in the fixed dial. a cannon pinion, a gear associated with the revoluhle'ring a pinion meshing with the said gear and also with teeth on the revoluhle dial. a cylinder cscapenient including a barrel having; oppositely disposed recesses therein to permit the passage of the teeth on the gear a sociated with the revolnhle ring. a train of gears for driving the cylinder escapenient from the cannon pinion. and means also driven by the cannon pinion for simultaneously moving the said revolahle disk and revoluhle ring api'e'leterniined pori tion of a revolution when released h the said. cylinder eseapement.

12. In a time indicator and n C(lliiliifiltion with, a casing and a motor mechanism, a fixed dial having openings therein, a revoluble dial having chronometrie indications thereon visible through one of the openings in the fixed dial, a revoluble ring also hav-- 1 i chronometrie indications thereon visible t i i-ouch another opening in the fixed dial, a -i;nnon pinion a gear associated with the ienz luhle ring, a pinion meshing With the said gear and also with teeth on the revoluble dial, a cylinder escapenient including a barrel having oppositely disposed recesses therein to permit the passage of the teeth on the gear associated with the revoluble ring, a train ot'p'ears tor drivinp the cylinder er: npeinent from the cannon pinion. a disk, and a spring connecting the said disk with the said gm? asf-l-ziciated with the revoluble wherehy when the said gear is released by the cylinder escapement the revoluhle ring and revoluble cylinder are turneda predetermined portion ot a revolution.

in testin'iony wl'iereot I have attixed my signature in presence of two witnesses.

ANDRE VA nun).

Witnesses lVtAMlE Nor, Ron. on Vnnsrnnnenno. 

